Debris Flow in Nevada County, California

Debris Flow June 9, 2023 · Nevada County, California

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

The California Highway Patrol-Truckee reported the closure of portions of Donner Pass Road (Old Highway 40) due to a rock slide/large boulder in the road between Sugar Bowl and Truckee after thunderstorms brought locally heavy rain the day before.

The wider storm

Low pressure over Southern California brought significant amounts of atmospheric moisture northward over the mountains, producing showers and thunderstorms with locally heavy rain and multiple reports of small hail. Heavy rain from thunderstorms over western Plumas County produced more than a dozen small debris flows along State Route 70, blocking the highway. There was also a rock slide with a large boulder at Donner Pass.

Began near Norden (39.3159, -120.3216).

Source: NOAA Storm Events Database, event 1106217. Narratives are written by the National Weather Service forecast office that issued the report.

Tornadoes near your address

See every tornado that passed near a place you know, measured to its path.